Super Colibri have a bit more power and better range and it sounds like "PHFFT!".

PHFFT ........ Hahahahahahahahaha

Back to OP post, get a working dog such as : German Shepherd, Rottweiler or Golden Retriever . The dog will scare the varmint away.
A neighbor just call 911 and said "A guy on the back yard with assault weapon shoot to my house"....... You're f*ck !

Not raccoons you idiot, n******! I actually know a Chinese man that eats racoons.

You can eat anything, with enough hot sauce!

Buy or rent a live trap. (Home Depot) (Amazon) Trap them, then dispatch them - any way you want. I've caught cats, skunks, raccoons, and squirrels. My current live traps aren't big enough for raccoons. A buddy borrowed my larger traps and it fell out of his truck and it was destroyed. It was a Havahart we got from a pest controller who was selling his old traps and replacing with new ones.

I voted two because you could get away with that almost anywhere. Without knowing more that's my safe choice. Last house I loved in I'd fire a bunch off many afternoons with my girls in back yard cheering me on. No houses behind me but neighbors right in either side ntheynjust didn't care.

I live in a large city---neighbors too close for firearms and city makes pellet guns same as firearms, so no go… Found an old slingshot I had---loaded it with a smooth, round rock about a 1/2" across---coon made a noise like a dog hit by a car---never saw him again...

cci quiets are only what I use. Sounds like a cap gun out of my Browning lever action with 22" barrel. Barrel length it's the key to keeping the sound down and not having your neighbors spaz out. Or borrow a suppressed PCP air rifle. I wiped out an entire family of raccoons twice using both. I wouldn't let any dog get tangled up with a pack of raccoons.

You can buy a recurve bow for like $100-150, and break no laws, and make less noise.

Really? I thought you needed a hunting license to hunt anything.

__________________
If ye love wealth better than liberty, the tranquility of servitude better than the animating contest of freedom, go home from us in peace. We ask not your counsels or your arms. Crouch down and lick the hands which feed you. May your chains set lightly upon you, and may posterity forget that you were our countrymen.
Samuel Adams

Many cities put pellet rifles in the same category as firearms. When I lived in a bigger city with a house on an acre, I bought a stoeger X20S .177 to handle the pests. It's rated as one of the best in class for noise reduction. I shot several skunks and raccoons with it. I never shot them in the body, only the head and it was always lights out, no noise.

I moved to a house on 21 acres and now, we don't even have skunks, raccoons or possums around here. I still use the pellet rifle for varmints if they're in a spot with a less than ideal background. The .177 will stop if it hits a small bush, the .22 will not.

Buy or rent a live trap. (Home Depot) (Amazon) Trap them, then dispatch them - any way you want. I've caught cats, skunks, raccoons, and squirrels. My current live traps aren't big enough for raccoons. A buddy borrowed my larger traps and it fell out of his truck and it was destroyed. It was a Havahart we got from a pest controller who was selling his old traps and replacing with new ones.

Make sure the Trash Panda doesn't look like this or you'll be hosed.

I am soft in my old age. Unless its a skunk, I trap and release in a nice park a few miles away.

Just trap them, much easier that way. Buy a Have-a-heart brand trap, much more effective. Then shoot them or drowned them in a trash can. Don't release them, ask any wildlife biologist or F&G warden, they will tell you the same.